BGP Failing with "error code 6 subcode 5 (Connection rejected)"

Emerald

Morning all.

Ive just installing a Zywall 310 (Firmware Version:V4.71(AAAB.0) / 2022-02-22 20:44:02)

I have a interface connected to a network where there are two BGP neighbors. I have ping connectivity to them both.

Diags >

Router# show bgp summary
Neighbor        AS          MsgRcvd  MsgSent  TblVer   InQ    OutQ   Up/Down   State/PfxRcd
===============================================================================
172.xxx     65001       10       5        0        0      0      never     Idle
172.xxx     65001       12       6        0        0      0      never     Idle

Ive tried changing few things on the 310 but still the same.

Doing a packet capture i see im getting this from both neighbors >>

Border Gateway Protocol - OPEN Message

Type: NOTIFICATION Message (3)

Major error Code: Cease (6)

Minor error Code (Cease): Connection Rejected (5)

Searching the web i only find this > https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClhtCAC

Any pointers / Suggestions please?

Thanks in advance

zyman2008

Emerald,
Please check the security policy settings on your ZyWALL310.
You need to allow peer IP to access TCP port 179 on your ZyWALL310.

Emerald

thanks- but issue was LAN side of the router. Networks folks fixed overnight